OP--you look bang to rights so you would have to determine if there are flaws in the documentation or the signage.
Here's the Notice:-
https://www.thegazette.co.uk/notice/4234296Note where it says:-
although in practice it is anticipated that the zones will only operate during these hours in school term-timeI would get hold of the Order to see if that statement is there too. Not "anticipated" but more precise or stronger i.e. "term times only".
If so there could be a case that there is a failure to comply with the Regulation 18 duty of LATOR 1996 because a very significant part of the information as to the effect of the Order has not been conveyed to road users by the sign in situ.
And this is the case I would use in support:-
Case Details
Case reference 2230471029
Appellant Harvey Kutner
Authority London Borough of Camden
VRM EP19HYL
PCN Details
PCN CU64608996
Contravention date 13 Jul 2023
Contravention time 08:39:00
Contravention location Elsworthy Road
Penalty amount GBP 130.00
Contravention Fail comply prohibition on certain types vehicle
Referral date
Decision Date 02 Dec 2023
Adjudicator Jack Walsh
Appeal decision Appeal allowed
Direction cancel the Penalty Charge Notice.
Reasons
Regulation 18 of the Local Authorities' Traffic Orders (Procedure) (England and Wales) Regulations 1996 (“Regulation 18) reads, as far as is relevant:
“Traffic signs
18 (1) Where an order relating to any road has been made, the order making authority shall take such steps as are necessary to secure
(a) before the order comes into force, the placing on or near the road of such traffic signs in such positions as the order making authority may consider requisite for securing that adequate information as to the effect of the order is made available to persons using the road;
(b) the maintenance of such signs for so long as the order remains in force…”
In R v. Bus Lane Adjudicator ex parte Nottingham City Council [2017] EWHC 430 (Admin) Lang J observed at [38]:
“It is well-established that a failure to comply with the regulation 18 duty as to signage is a proper ground on which an adjudicator may allow an appeal against the issue of a penalty charge notice on the ground that the alleged contravention of the relevant traffic regulation order did not occur. (See R (London Borough of Camden) v. The Parking Adjudicator [2011] EWHC 295 (Admin), per Burnett J. at [50] – [51]).”
By contrast to typical traffic management orders (TMOs) that create a prohibition on motor vehicles on school streets during the beginning and end of the school day, the TMO in this case makes express reference to the term times of the relevant school in its wording. The provision states (with my underlining):
"“No person shall cause any motor vehicle to enter the section of Elsworthy Road which lies between the south-western kerb line of Primrose Hill Road and the northeastern kerb line of Elsworthy Rise between 8.30 and 9.30am and between 3 and 4pm on Mondays to Fridays during school term times”.
The effect of the TMO is limited temporally not merely by the time of day, or the day of the week, but - expressly - by whether the day falls within a school term.
The signage, however, informs road users only of the first two of those three temporal restrictions on the prohibition on motor vehicles. It fails to convey to road users the very significant information that the prohibition does not apply during school holidays which, as the EA's own evidence demonstrates, comprise several weeks of the year.
This is different to the position in respect of the 'typical' school street TMO which makes no reference to term times but is simply not enforced during school holidays. In this case, the EA chose to create, as part of the terms of the TMO, a temporal restriction on the prohibition by reference to term times.
Consequently, there was a clear failure to comply with the Regulation 18 duty because a very significant part of the information as to the effect of the TMO was not conveyed to road users by the relevant signage in place on the occasion in question.
In those circumstances the alleged contravention is not proved.
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Mike